Answer:
2
Step-by-step explanation:

Ana is false. The answer is 7/16 because 7*1=7 and 8*2=16
Your answer would be the last option, c = √(E/m).
We can see this when we rearrange the equation, as:
E = mc²
÷ m
E/m = c²
√
√(E/m) = c
So you got all the steps in rearranging correct :)
I hope this helps!
The answer is x is less than or equal to 3. the first answer choice